Gas or liquid-fuel burner



J. LUKASZEWS'KI.

GAS 0R LIQUID FUEL BURNER.

APPLlcATmN FILED Diem. 1920.

Patented oet." 25, 1921.

UNITED STATES JOHN L'UKASZEWSKI, 0F CHICAGO, ILLINOIS.

PATENT OFFICE.

GAS on LIQUID-FUEL BURNER.

Specification of Letters Patent.

Patented Oct. 25, 1921.

Application filed December 31, 1920. Serial No. 434,338.

To @ZZ whom it may concern:

Be it known that I, JOHN LUxAsziiwsxi, a citizen of the United States ofAmerica, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Gas orLiquidFuel Burners, of which the following is a specification.

This invention relates to certain new and useful improvements in gas orliquid fuel burners, `particularly adapted for use in starting firesalthough capable of general application.

The primary object of the invention is' to provide a burner of the abovekind which may be easily inserted beneath the grate of a stove so that aplurality of burner members may project upwardly between the spacesbetween the bars of the grate for efficiently lighting the material onthe grate which'is employed for starting a coal iire or the like.4 l

\ A. further object of the invention is to pro- 'f vide the burner withburner members hav construct each burner member that the air,VA

in passing to'the mixing chamber moves parallel with the liquid o rgaseous fuel so as to guard against impeding the movement of the latterthroughout the outlet of the burner, whereby most efficient results areobtained.

With these general objects in view and others that will appear as thenature of the invention is better understood, the same consists in thenovel construction, combination and arrangement of parts hereinaftermore.

fully described, illustrated in the accompanying drawings, and pointedout in the appended claims.

In the drawings forming a part of this application and in which likedesignating characters refer to corresponding partsthroughout theseveral views:

Figure 1 is an elevational view of the pre-` ferred form ofburner'constructed in accordance with the present invention and shownconnected to a liquid fuel tank which is partly broken away by means ofa iiexible conduit or hose which is also partly broken away,

Fig. 2 is an enlarged sectional view taken substantially upon line II-IIof Fig. 1,

Fig. 3 is an enlarged4 transverse sectional view taken substantiallyupon line III-III of Fig. 2, and

Fig. 4f is a View partly in elevation and partly in section, of amodified form of the burner per se.

Referring more in detail tothe several views, the present inventionpreferably embodies a burner construction including an inlet pipe 5`adapted as at 6, at its outer end to befcoupled to a flexible conduit orhose 7 which has its opposite ends coupled as at '8 to a liquid fueltank 9 having a valve 10 for controlling the flow of liquid therefrom.In practice, kerosene is preferably employed as the fuel, and if anintense flame is desired, the pipe 5 is provided with a branch pipe 11adapted to have its outer end coupled to a suitable pipe extending to asource of steam supply.

The burner per se includes a manifold or transverse pipe 12v centrallyfixed to the inner end of the pipe 5 and communicating with the latteras well as havingla plurality of spaced fuel pipes extending laterallytherefrom as at 13 in the same general direction as the pipe 5 'but fromthe opposite sideof the manifold l2. The outer end of each pipe 13 isianged asat 14:, and this flange is provided with external threads so asto have an internally threaded combined sleeve and burner tip 15,threaded thereon whereby a mixing chamber 16 is formed Within the member15 between the outlet `opening 17 of the latter and the fiange 111.

portion of each pipe 13, and an annular space is left between vthe pipe13 and its sleeve 15 for permitting inlet of air. The air passes intothe open lower end of the sleeve 15 and moves parallel withk the fluidin the pipe 13 and is allowed to pass intothe mixing chamber whiletraveling in the same direction by the provision of a plurality ofopenings 18 in the iiange 14. By adjusting the combined burner tip andsleeve 15 as indicated by dotted lines in Fig. 2, the mixing chamber '16may be varied in size for varying the intensity of the name and forenabling lengthening of the burner members when the latter are found ofinsuiiicient length topass above the grato bars of a stove. "If desired,the

steam pipe 11 may be provided with a control flange 19.

Referring to Fig. 1l, a simplified form of the invention is shown whichwill be found of ample efficiency in startingiires for domesticpurposes. In this form of the invention the pipe 5 is adapted to haveits outer end coupled to a liquid supply tank in the manner describedwith respect to pipe 5 in the form shown in Fig. l, andthe inner 'end ofthis pipe lis connected Vto and communicates with the central portion ofa transverse pipe or manifold 12 havinga plurality fof laterallyextending burner pipes 13, In 15 this form-of the invention steam is notemployed for promoting combustion or feeding the fuel under pressure,and if desired, the pipe 11 may also be dispensed with inthe form ofFig. 1. f Y 1 `While the form of the invention herein shown anddescribed is what is believed to be the preferred embodiment thereof,it'` is nevertheless to be understood that various forms, modificationsand arrangements of i sa the parts may be made without departing fromithe spirit and'scope of the invention as claimed. Y

Having thus described myinvention, what I claim as new and desire tosecure by Let-V ters Patent, iS.:--V

1.` A gas or liquid fuel burnerV including an inlet pipe adapted to haveits outer end coupled by a flexible conduit to a fuel supply, atransverse manifold having its central portion rigid with andcommunicating with the .inner end of said pipe, a pluralityV of burnerpipes extending from the opposite side of the manifold in the samegeneral direction as said first named pipe and arranged in spacedrelations so as to pass upwardly between the grate bars of a stovegrate, said burner pipes being provided with flanged upper ends havinglongitudinally extending openingsV therethrough, and a combined sleeveand burner tip mounted upon the `flange of each burner pipe inspacedrelation tothe latter whereby air is admitted between the burnerpipe 'and-the sleeve and through the openings in the flange in the samedirection as the flowbf the lfuel through theburner pipes, said combinedsleeve and burnerftip having a restricted opening in the outer endthereof and providing a' mixing chamber between said restricted openingand the open upper end ply, a transverse manifold having itscentralportion rigid with and communicating with Vthe inner end of vsaidpipe, a plurality ofv b urner pipes extending .from the opposite sldeofthe manifold in the same general directlon as said first: named Vpipeand arextending openings therethrough, a compbined sleeve and burner tipmounted upon the flange of each burner pipe in spaced relation to thelatter whereby air is admitted between the burner pipe and the sleeveand through the openings in the flange in the same direction as the flowY of the fuel through the burner pipes, said combined sleeve and burnertip having a restricted opening in the outer end thereof land providinga'mixing chamber between said restricted opening and the open upper endof the burner pipe, said combined sleeve and burner tip being adjustablelongitudinally of and yrelative to said .burner pipe. Y

' 3. A gas or liquid fuel burner including an inlet pipe adapted to haveits outer end coupled by a flexible conduit to afuel supply, atransverse manifold having itscentral portion rigid vwithandcommunicating with the linner end of saidv pipe, a plurality ofburner pipes extendingfrom .the opposite side of the manifold vin thesame general direction Vas said first named pipek and arranged in spacedrelations so as to passupwardly between the grate bars of 'a stovegrate,said burner pipes being provided with flanged upper endsl havinglongitudinally extending openings therethrough, a combined sleeve and`burner tipl mounted upon the flange of each burner pipe in spacedrelation to the latter whereby air is admitted between the burner pipeand they sleeve and through the openings inthe flange in the sainekdirection" as Vthe flow of the `fuel Y 'the flange of its restrictiveburner pipe for adjustment longitudinally on and relatively to theburner'pipe, whereby variations in the size of the mixing 'chamber maybe had with a consequent lengthening or shortening of the burnermembers.

ll. A gas or liquid fuel burner including an inlet pipe adapted to haveits outer end coupled by a flexible conduit to a fuel supply," altransverse manifold having its central portion rigid with andcommunicating with the inner end of said pipe, a plurality of burnerpipes extending from the opposite side of the manifold in the samegeneral direction asl said first named pipe and arranged in spacedrelation so as to pass upwardly between the grate bars ofa 'stove grate,said burner pipes being provided with flanged upper ends havinglongitudinally extending openings therethrough, a combined sleeve andburner tip mounted upon the flange of each burner pipe in spacedrelation to the latter whereby air is admitted between the burner pipeand the sleeve and through the openings in the flange in the samedirction as the flow of the fuel through the burner pipes, said combinedsleeve and burner tip having a restricted opening in the outer endthereof and providing a miX- ing chamber between said restricted openingand the open upper end of the burner pipe, said combined sleeve andburner tipv `burner pipe, whereby variations in the size of the mixingchamber may be had with a consequent lengthening or 'shortening of theburner members, and a branch steam inlet pipe provided on the iirstnamed pipe and having a control valve therein.

In testimony whereof I afiix my signature.

JOHN LUKASZEWSKI.

